package morning.cat.service;

import morning.cat.entity.User;

/**
 * XXX
 *
 * @author mengzhang6
 * @date 2019/1/3 15:02
 */
public interface UserService {

    /**
     * say hello to one user
     *
     * @param user
     */
    String sayHelloToUser(User user);
}
